Home Intermediate Python

Error Handling

Error Handling

error handling

exceptions

try

except

else

finally

raise

ValueError

TypeError

IndexError

KeyError

ZeroDivisionError

try and except

Wrap a Risky Line in try/except

Catch a ValueError

Catch an IndexError

Catch a KeyError

Capture the Error Message with as

Wrap a Function Call Safely

Catching multiple exception types

Two except Blocks

Catch a Tuple of Exceptions

LookupError Covers Both

Catch-All with Exception

else and finally

Use the else Branch

Always-Run finally Block

Combine else and finally

Raising exceptions with raise

Raise a ValueError

Validate User Input with raise

Raise a TypeError

Re-raise the Same Exception

Review: Safe Integer Parser

Review: Validate then Compute

Review: Lookup with Fallback

Review: Full try/except/else/finally